I think the game has a nice soundtrack, however no SFX unfortunately.
Art is simple but works well.
There are a few bugs, but ThymeBonus already explained them. However I have one more : with the death screen, there is no way to leave it, I think you are probably aware of it. Also here is how it looks to me in case it isn't known :
I didn't really undertand how to dig, and many other things, but good job on submitting the game.